Page 6 - Linear Models for the Prediction of Animal Breeding Values 3rd Edition
P. 6

3.3.1.  Constructing the mixed model equations               38
                  3.3.2.  Progeny (daughter) yield deviation                   42
                  3.3.3.  Accuracy of evaluations                              44
            3.4.   A Sire Model                                                46
                  3.4.1.  An illustration                                      46
            3.5.   Reduced Animal Model                                        49
                  3.5.1.  Defining the model                                   49
                  3.5.2.  An illustration                                      51
                  3.5.3.  An alternative approach                              54
            3.6.   Animal Model with Groups                                    54
                  3.6.1.  An illustration                                      56

         4.  Best Linear Unbiased Prediction of Breeding Value:
            Models with Random Environmental Effects                           61
            4.1.  Introduction                                                 61
            4.2.  Repeatability Model                                          61
                  4.2.1.  Defining the model                                   62
                  4.2.2.  An illustration                                      62
                  4.2.3.  Calculating daughter yield deviations                66
            4.3.   Model with Common Environmental Effects                     66
                  4.3.1.  Defining the model                                   67
                  4.3.2.  An illustration                                      67

         5.  Best Linear Unbiased Prediction of Breeding Value:
            Multivariate Animal Models                                         70
            5.1.  Introduction                                                 70
            5.2.   Equal Design Matrices and No Missing Records                71
                  5.2.1.  Defining the model                                   71
                  5.2.2.  An illustration                                      72
                  5.2.3.  Partitioning animal evaluations from multivariate analysis  74
                  5.2.4.  Accuracy of multivariate evaluations                 76
                  5.2.5. Calculating daughter yield deviations in multivariate models  77
            5.3.   Equal Design Matrices with Missing Records                  78
                  5.3.1.  An illustration                                      78
            5.4.   Unequal Design Matrices                                     80
                  5.4.1.  Numerical example                                    80
                  5.4.2.  Illustrating the computation of DYD
                         from a multivariate model                             82
            5.5.   Multivariate Models with No Environmental Covariance        84
                  5.5.1.  Different traits recorded on relatives               84
                  5.5.2.  The multi-trait across-country evaluations (MACE)    86

         6.  Methods to Reduce the Dimension of Multivariate Models            95
            6.1.  Introduction                                                 95
            6.2.  Canonical Transformation                                     95
                  6.2.1.  The model                                            96
                  6.2.2.  An illustration                                      97



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